competition and a negative externality. The decision-maker uses an emission standard or an emission tax, whose revenue is recycled …

In the existence of trade interaction, a sub-global climate change policy can generate externality, which can cause … traded commodities. This externality can have notable impacts on the efficiency and pollution abatement opportunities of the …

Altruism, giving and pro-social conduct, and reciprocity, are the basis of the existence and performance of societies … (which they sometimes also create); and in charity and specific organizations. Altruism has various origins: it can be … hedonistic or natural altruism in empathy, affection, sympathy, emotional contagion, pity, and compassion; or normative altruism …

Many legal rules—ranging from common-law contract doctrines to modern consumer protection regulation—are designed to … psychology in legal scholarship and policy. The Article discusses how discerning tastes from circumstances could guide regulation …

optima. First, there is an Internality Dividend from Externality Taxes: aside from reducing externalities, they also offset … taxes, the optimal policy will tend to involve an energy tax below marginal damages coupled with a larger subsidy for energy …